CVE-2022-21716

Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 22.2.0, Twisted SSH client and server implement is able to accept an infinite amount of data for the peer’s SSH version identifier. This ends up with a buffer using all the available memory. The attach is a simple as `nc -rv localhost 22 < /dev/zero`. A patch is available in version 22.2.0. There are currently no known workarounds. Date published : 2022-03-03 https://github.com/twisted/twisted/security/advisories/GHSA-rv6r-3f5q-9rgx

https://github.com/twisted/twisted/commit/89c395ee794e85a9657b112c4351417850330ef9